What is JotForm?
JotForm is a freeonline form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.

Why do you not want to answer this thread?(Your answer will be sent to Jeanette and Aytekin)

Help with field validation

I need to validate the Month and Year fields to disallow past selections. For example, it is June now and if a user selects a month value of January-May I want a standard validation error message to appear as it does with other field validations.

I can't use the Date/Time selector as I need the individual dropdown fields to appear as they do now.

Can you provide me with a validation method? I suspect some simple javascript will do the job but I'm not sure how to go about it.

This is not currently possible to do that using standard form builder functionality, but it might be possible with the custom javascript code. We will try to come up with some example, and then we will get back to you.